包埋光合细菌净化观赏鱼养殖污水的研究

崔融丰

（广州市第六中学高中生物科研组）

指导老师：刘少明、卫艳冰

摘要 本文介绍我使用游离光合细菌、包埋光合细菌净化观赏鱼养殖污水。通过观察现象、测定DO、COD、NH3-N等的水质指标，比较结果，发现包埋的光合细菌可以长时间、更有效地净化观赏鱼养殖污水，不散发腥臭味。把包埋光合细菌应用于观赏鱼养殖中，既节约了水电资源，又有利于保护环境。

Abstract This article mainly introduces how I used the free PSB and the fixed PSB to purify the breeding sewage of decorative fish. During the process, I observed the phenomena and measured the indexes of DO, COD and ammonia-N in the water. According to comparison, I have discovered that the fixed PSB can keep the breeding sewage of decorative fish purified a longer time as well as more efficiency. The water won’t give off fishy and stenchy smell. My experiment proves that the use of the fixed PSB to the breeding water of decorative fish can not only save the resources of water & electricity, but also protect the environment.

关键词：包埋 光合细菌 养殖污水 净化水质

Key words Purify sewage fixed Photosynthetic bacteria PSB一、前言

目前，家庭养殖观赏鱼已成为一种时尚，但是观赏鱼养殖中存在需频繁换水、不间断充氧等问题，给人们